wabco hydraulic pump motor failure 2 pricelist

Whether it’s for cars, buses, trucks, or trailers, WABCO® is at the frontline at developing and providing products and systems to make vehicles safer and easier to control. Founded in 1869, WABCO is a major supplier of braking, stability, suspension and transmissions in the Americas and beyond. The company is recognized as introducing the modern air brake system in 1869, and continues to lead the industry in air brake design and production for the heavy duty and commercial vehicle sectors. Today, WABCO operates as a division of the German auto parts maker ZF and employs 16,000 employees in facilities in 36 countries worldwide.

I (fixed) two other buses with this problem by tapping with a hammer. I have another that I pulled off the motor which is sealed and welded in the case so you can"t access the brushes/com to clean. I cleaned dry grease and rust out of the bearing port inside the modulator. The motor has a bearing on the end of the shaft that acts as an eccentric. It is working for now. I also did the service bulletin S10SG about drilling a hole in the motor. A bit too late I think they all were dry no water came out.

Embarassing personal experience has shown me that WabCo"s diagnostics currently only communicate via J1708/J1587. Make sure that the ToolBox program has J1708/J1587 selected & not J1939.

It selects HD Standard on the brakes under Brakes/Power Unit. Which is where I picked up the generic code for the mod motor. I try to manually load Wabco ABS Hydraulic and it gives me an error code. Tech support hasn"t got back with me yet. I read the D series just fine. The bus is fixed though. Should I drill a hole in it!?! :P

From what I have seen, I"ve been reluctant to tap on anything even in the vicinity of those valve bodies! I"m glad to know you can tap on the motor and get away with it, it can prove to be another diagnostic method, just to be sure I am chasing the right rabbit :)